Home / 1,120,114,861.72-1,545,758,789.34-618,323,936.92

Finding the Fourth Proportional to 1,120,114,861.72, 1,545,758,789.34 and 618,323,936.92

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Solution

The fourth proportional to 1,120,114,861.72, 1,545,758,789.34 and 618,323,936.92 is: 853,287,187.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,114,861.72 : 1,545,758,789.34 = 618,323,936.92 : x
  2. Step 2: Convert to fraction form
    1,120,114,861.72/1,545,758,789.34 = 618,323,936.92/x
  3. Step 3: Cross multiply
    1,120,114,861.72x = 1,545,758,789.34 × 618,323,936.92
  4. Step 4: Simplify right side
    1,120,114,861.72x = 955,779,660,153,401,600
  5. Step 5: Solve for x
    x = 955,779,660,153,401,600/1,120,114,861.72
  6. Step 6: Final answer
    x = 853,287,187.61

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.